HP Compaq Elite 8300 vs Dell Optiplex 7010

seuchato wrote: OT: on:
Do you drive the Toyota in your avatar in the pictured environments? [If: my envy guaranteed. No way in my country]
OT: off.

If you can, get a SSD, good and fast USB stick, install LCNC on it (you will love to have that, always, at least I do!), attach it to thePC in question. Fire it up, go to bios, disable everything suspicious, boot into LCNC and do some thorough testing. You might need to pay the owner a beer. If it fails, undo your settings and have the owner sip the beer, go home and look fo another PC. If it is successful, I'd pay some more beers to bring the price down :-]

Greez
chris

Maybe this will answer the question of do I drive my Toy in that kind of environment

this one of my sister driving my truck in water for the first time


this is an early one with a friend of mine riding with me


these video's have been taken in a gated multi owner property (15,000 acre's total 12,000 driveable)
unfortunately I haven't had the truck on the road for a few years.
I am trying to get my dad set up with a reliable truck so we can both go out and Offroad.

as far as the Dell OptiPlex 7010 . I have the replacement on the table with an SSD and I am
running tests as I type this post (on a different computer) .
Haven't made any changes in the Bios yet ( other then boot order ) I want to know the absolute worst case scenario.
first up is Linux Mint XFCE 19.3 . Then Debian Buster 10.6 XFCE
I will report my findings when I am done . Figure about a week.

well I am sure I have done something wrong but here are the test results any way


as you can see I did something wrong I don't have latency readings

A short test I still don't fully understand the numbers.



LinuxCNC pc tests, version 20200930, started 29.10.2020 23:34:41
********************************************************************************
General info:
Dell Inc., OptiPlex 7010
Bios version A29, dated 06/28/2018
Chipset: Intel Corporation 7 Series/C216
Harddisk is non-rotational, ie. SSD
The amount of swap currently used is 0
================================================================================
CPU related data:
model name : Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
cpu cores : 4
stepping : 9
cache size : 6144 KB
================================================================================
RAM related data:
Maximum Capacity: 32 GB
Size: No Module Installed
Size: 4096 MB
Size: No Module Installed
Size: 4096 MB
================================================================================
GPU related data:
product: Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller
configuration: driver=i915 latency=0
================================================================================
Parallel port related data:
number of parallel ports is 0
================================================================================
Os and desktop related data:
PRETTY_NAME="Linux Mint 19.3"

Should the info below not match with your machine,
kindly post the output of pstree here, including a brief
desciption of your desktop environment, window manager and
display manager. Tia
forum.linuxcnc.org/18-computer/39370-scr...-of-computer-latency

Desktop environment : lightdm
Windowmanager : Xfwm4
Displaymanager : lightdm
================================================================================
Kernel related data:
Kernel 5.0.0-32-generic
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
Cpu idle driver: intel_idle
================================================================================
Kernel modules data:
Check if pcspkr is loaded: No, which is good!
Check if snd modules are loaded: Yes, may cause bigger latency.
can probably be disabled in bios, alternatively, you can run
"./block-snd-modules"
which has just now been created for your convenience.
================================================================================
Keyboard & Mouse related data:
Number of mice: 1
Mouse 0 :
Mice attached to USB:
Keyboards attached to USB:
Dell Computer Corp. Keyboard
================================================================================
LinuxCNC related data:
LinuxCNC version is: 2.8.0.96.g589db060d
================================================================================
Preparing for latency test:
Started glxgears No. 1, 2, 3, 4, 5
..........
Started firefox with ' vimeo.com/150574260 ', WID
================================================================================
Command for latency test is:
su cnc -c "latency-histogram --nobase --base 25000 --sbinsize 1000 --nox 2>&1 | tee -a 1604028827.lat &"

Latency testing loop started Thu Oct 29 23:34:55 EDT 2020,
should end after Thu Oct 29 23:39:55 EDT 2020

================================================================================
Swap useage: prerun: 0, running: 0

================================================================================
CPU core temperatures:
Core 0: Tmin: 36.0°C, Tmax: 41.0°C, (high = +85.0°C, crit = +105.0°C)
Core 1: Tmin: 40.0°C, Tmax: 45.0°C, (high = +85.0°C, crit = +105.0°C)
Core 2: Tmin: 37.0°C, Tmax: 43.0°C, (high = +85.0°C, crit = +105.0°C)
Core 3: Tmin: 37.0°C, Tmax: 44.0°C, (high = +85.0°C, crit = +105.0°C)
================================================================================
last latency data is as follows:.
299 secs servo min:-999.900 uS max:8653.700 uS sdev: 7.400 uS
300 secs servo min:-999.900 uS max:8653.700 uS sdev: 7.400 uS

Dear God Debian Buster 10.6 is way better in latency then Mint was on the 7010 .
Jitter on base thread is around 11000 to 15000 ns. I am having some issues getting
the test script to unzip so I can use it . As soon as I get that sorted I will post the results.

with what I was getting with Mint ( base thread of around 10000000ns ) I was beginning
to dought the opti 7010 was going to work.

I was finally able to get the test script unzipped. Here are the test results
if I am reading this right , it will do just fine for my 7i76E board that I intend to use



LinuxCNC pc tests, version 20200930, started 30.10.2020 16:44:01
********************************************************************************
General info:
Dell Inc., OptiPlex 7010
Bios version A29, dated 06/28/2018
Chipset: Intel Corporation 7 Series/C216
Harddisk is non-rotational, ie. SSD
The amount of swap currently used is 0
================================================================================
CPU related data:
model name : Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
cpu cores : 4
stepping : 9
cache size : 6144 KB
================================================================================
RAM related data:
Maximum Capacity: 32 GB
Size: No Module Installed
Size: 4096 MB
Size: No Module Installed
Size: 4096 MB
================================================================================
GPU related data:
product: Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller
configuration: driver=i915 latency=0
================================================================================
Parallel port related data:
number of parallel ports is 0
================================================================================
Os and desktop related data:
PRETTY_NAME="Debian GNU/Linux 10 (buster)"

Should the info below not match with your machine,
kindly post the output of pstree here, including a brief
desciption of your desktop environment, window manager and
display manager. Tia
forum.linuxcnc.org/18-computer/39370-scr...-of-computer-latency

Desktop environment : xfce4
Windowmanager : Xfwm4
Displaymanager : lightdm
================================================================================
Kernel related data:
Kernel 4.19.0-11-rt-amd64
GRUB_CMDLINE_LINUX_DEFAULT="quiet"
Cpu idle driver: intel_idle
================================================================================
Kernel modules data:
Check if pcspkr is loaded: Yes, may cause bigger latency.
can be eliminated using:
sudo echo "install pcspkr /bin/true" >/etc/modprobe.d/pcspkr.conf
Check if snd modules are loaded: Yes, may cause bigger latency.
can probably be disabled in bios, alternatively, you can run
"./block-snd-modules"
which has just now been created for your convenience.
================================================================================
Keyboard & Mouse related data:
Number of mice: 1
Mouse 0 : PixArt USB Optical Mouse
Mice attached to USB:
Keyboards attached to USB:
Dell Computer Corp. Keyboard
================================================================================
LinuxCNC related data:
LinuxCNC version is: 2.8.0
================================================================================
Preparing for latency test:
Started glxgears No. 1, 2, 3, 4, 5
..........
Started firefox with ' vimeo.com/150574260 ', WID 50331651
================================================================================
Command for latency test is:
su cnc -c "latency-histogram --nobase --base 25000 --sbinsize 1000 --nox 2>&1 | tee -a 1604090598.lat &"

Latency testing loop started Fri 30 Oct 2020 04:44:14 PM EDT,
should end after Fri 30 Oct 2020 04:49:14 PM EDT

================================================================================
Swap useage: prerun: 0, running: 0

================================================================================
CPU core temperatures:
Core 0: Tmin: 45.0°C, Tmax: 62.0°C, (high = +85.0°C, crit = +105.0°C)
Core 1: Tmin: 48.0°C, Tmax: 68.0°C, (high = +85.0°C, crit = +105.0°C)
Core 2: Tmin: 48.0°C, Tmax: 66.0°C, (high = +85.0°C, crit = +105.0°C)
Core 3: Tmin: 45.0°C, Tmax: 65.0°C, (high = +85.0°C, crit = +105.0°C)
================================================================================
last latency data is as follows:.
304 secs servo min: -58.500 uS max: 54.000 uS sdev: 3.100 uS
305 secs servo min: -58.500 uS max: 54.000 uS sdev: 3.100 uS

and the 2 hour test

Hey, thanks for the vids. Guess hat chassis is now really dustfree! Impossible in my country. Guess you guys have tons of fun in your plot.

Regarding the script: Glad you got it sorted out. If you do not have any latency numbers, it is because of permissions. If you start the script in a directory created by root, normally only root has write rights. I'll have to address this in the next version of the script. For now, you can change the owner of the directory to the user the script runs the latency test.
Example below:


The directory "W510" is owned by root. User cnc will have read permissions only. So if you cd into "W510" and invoke the script there, you will not have any latency data written, as the very latency test is run under user cnc. To correct that, I would have to do the following:


hth
chris

Thanks seuchato I will eventually know what I am doing instead of fumbling around like a noob.

I fumble around like a noob too, but doing so, I try concentrate on my new GF

seuchato wrote: I try concentrate on my new GF

You lucky .....